The SML32S-391K from Gowanda Electronics is a RF Inductor with Inductance 3.9 uH, DC Resistance 0.83 Ohms, DC Current 500 mA, Self Resonant Frequency 42 MHz, Operating Temperature -55 to 125 Degree C. Tags: Wire Wound Inductor. More details for SML32S-391K can be seen below.